I think Kurk has proven that you can't burst bubbles, anything that enters them simply adjusts its frame of reference. You'd have to physically force me out of my own bubble to burst it. Or wait me for me run out of cadmium... but outwaiting a Pulser is a fool's task.

I designed an in-character storytelling & drinking game for my d&d groups and we played it using simple cards I threw together or just randomly generated numbers for discord (narratively it uses stones with dwarven runes). It made for some fun roleplaying.